[thirdparty/glibc.git] / resolv / resolv.h

/*
 * Copyright (c) 1983, 1987, 1989
 *    The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

/*
 * Portions Copyright (c) 1996-1999 by Internet Software Consortium.
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
 * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
 * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
 * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
 * SOFTWARE.
 */

/*
 *	@(#)resolv.h	8.1 (Berkeley) 6/2/93
 *	$BINDId: resolv.h,v 8.31 2000/03/30 20:16:50 vixie Exp $
 */

#ifndef _RESOLV_H_
#ifndef __need_res_state
# define _RESOLV_H_

# include <sys/param.h>
# if (!defined(BSD)) || (BSD < 199306)
#  include <sys/bitypes.h>
# else
#  include <sys/types.h>
# endif
# include <sys/cdefs.h>
# include <stdio.h>
# include <arpa/nameser.h>
#endif

#include <netinet/in.h>

#ifndef __res_state_defined
# define __res_state_defined

typedef enum { res_goahead, res_nextns, res_modified, res_done, res_error }
	res_sendhookact;

typedef res_sendhookact (*res_send_qhook) (struct sockaddr_in * const *ns,
					   const u_char **query,
					   int *querylen,
					   u_char *ans,
					   int anssiz,
					   int *resplen);

typedef res_sendhookact (*res_send_rhook) (const struct sockaddr_in *ns,
					   const u_char *query,
					   int querylen,
					   u_char *ans,
					   int anssiz,
					   int *resplen);

/*
 * Global defines and variables for resolver stub.
 */
# define MAXNS			3	/* max # name servers we'll track */
# define MAXDFLSRCH		3	/* # default domain levels to try */
# define MAXDNSRCH		6	/* max # domains in search path */
# define LOCALDOMAINPARTS	2	/* min levels in name that is "local" */

# define RES_TIMEOUT		5	/* min. seconds between retries */
# define MAXRESOLVSORT		10	/* number of net to sort on */
# define RES_MAXNDOTS		15	/* should reflect bit field size */
# define RES_MAXRETRANS		30	/* only for resolv.conf/RES_OPTIONS */
# define RES_MAXRETRY		5	/* only for resolv.conf/RES_OPTIONS */
# define RES_DFLRETRY		2	/* Default #/tries. */
# define RES_MAXTIME		65535	/* Infinity, in milliseconds. */

struct __res_state {
	int	retrans;	 	/* retransmition time interval */
	int	retry;			/* number of times to retransmit */
	u_long	options;		/* option flags - see below. */
	int	nscount;		/* number of name servers */
	struct sockaddr_in
		nsaddr_list[MAXNS];	/* address of name server */
# define nsaddr	nsaddr_list[0]		/* for backward compatibility */
	u_short	id;			/* current message id */
	char	*dnsrch[MAXDNSRCH+1];	/* components of domain to search */
	char	defdname[256];		/* default domain (deprecated) */
	u_long	pfcode;			/* RES_PRF_ flags - see below. */
	unsigned ndots:4;		/* threshold for initial abs. query */
	unsigned nsort:4;		/* number of elements in sort_list[] */
	char	unused[3];
	struct {
		struct in_addr	addr;
		u_int32_t	mask;
	} sort_list[MAXRESOLVSORT];
	res_send_qhook qhook;		/* query hook */
	res_send_rhook rhook;		/* response hook */
	int	res_h_errno;		/* last one set for this context */
	int	_vcsock;		/* PRIVATE: for res_send VC i/o */
	u_int	_flags;			/* PRIVATE: see below */
	union {
		char	pad[52];	/* On an i386 this means 512b total. */
		struct {
			u_int16_t		nscount;
			u_int16_t		nsmap[MAXNS];
			int			nssocks[MAXNS];
			u_int16_t		nscount6;
			u_int16_t		nsinit;
			struct sockaddr_in6	*nsaddrs[MAXNS];
		} _ext;
	} _u;
};

typedef struct __res_state *res_state;
# undef __need_res_state
#endif

#ifdef _RESOLV_H_
/*
 * Revision information.  This is the release date in YYYYMMDD format.
 * It can change every day so the right thing to do with it is use it
 * in preprocessor commands such as "#if (__RES > 19931104)".  Do not
 * compare for equality; rather, use it to determine whether your resolver
 * is new enough to contain a certain feature.
 */

#define	__RES	19991006

/*
 * Resolver configuration file.
 * Normally not present, but may contain the address of the
 * inital name server(s) to query and the domain search list.
 */

#ifndef _PATH_RESCONF
#define _PATH_RESCONF        "/etc/resolv.conf"
#endif

struct res_sym {
	int	number;		/* Identifying number, like T_MX */
	char *	name;		/* Its symbolic name, like "MX" */
	char *	humanname;	/* Its fun name, like "mail exchanger" */
};

/*
 * Resolver flags (used to be discrete per-module statics ints).
 */
#define	RES_F_VC	0x00000001	/* socket is TCP */
#define	RES_F_CONN	0x00000002	/* socket is connected */

/* res_findzonecut() options */
#define	RES_EXHAUSTIVE	0x00000001	/* always do all queries */

/*
 * Resolver options (keep these in synch with res_debug.c, please)
 */
#define RES_INIT	0x00000001	/* address initialized */
#define RES_DEBUG	0x00000002	/* print debug messages */
#define RES_AAONLY	0x00000004	/* authoritative answers only (!IMPL)*/
#define RES_USEVC	0x00000008	/* use virtual circuit */
#define RES_PRIMARY	0x00000010	/* query primary server only (!IMPL) */
#define RES_IGNTC	0x00000020	/* ignore trucation errors */
#define RES_RECURSE	0x00000040	/* recursion desired */
#define RES_DEFNAMES	0x00000080	/* use default domain name */
#define RES_STAYOPEN	0x00000100	/* Keep TCP socket open */
#define RES_DNSRCH	0x00000200	/* search up local domain tree */
#define	RES_INSECURE1	0x00000400	/* type 1 security disabled */
#define	RES_INSECURE2	0x00000800	/* type 2 security disabled */
#define	RES_NOALIASES	0x00001000	/* shuts off HOSTALIASES feature */
#define	RES_USE_INET6	0x00002000	/* use/map IPv6 in gethostbyname() */
#define RES_ROTATE	0x00004000	/* rotate ns list after each query */
#define	RES_NOCHECKNAME	0x00008000	/* do not check names for sanity. */
#define	RES_KEEPTSIG	0x00010000	/* do not strip TSIG records */
#define	RES_BLAST	0x00020000	/* blast all recursive servers */

#define RES_DEFAULT	(RES_RECURSE | RES_DEFNAMES | RES_DNSRCH)

/*
 * Resolver "pfcode" values.  Used by dig.
 */
#define RES_PRF_STATS	0x00000001
#define RES_PRF_UPDATE	0x00000002
#define RES_PRF_CLASS   0x00000004
#define RES_PRF_CMD	0x00000008
#define RES_PRF_QUES	0x00000010
#define RES_PRF_ANS	0x00000020
#define RES_PRF_AUTH	0x00000040
#define RES_PRF_ADD	0x00000080
#define RES_PRF_HEAD1	0x00000100
#define RES_PRF_HEAD2	0x00000200
#define RES_PRF_TTLID	0x00000400
#define RES_PRF_HEADX	0x00000800
#define RES_PRF_QUERY	0x00001000
#define RES_PRF_REPLY	0x00002000
#define RES_PRF_INIT	0x00004000
/*			0x00008000	*/

/* Things involving an internal (static) resolver context. */
__BEGIN_DECLS
extern struct __res_state *__res_state(void) __attribute__ ((__const__));
__END_DECLS
#define _res (*__res_state())

#ifndef __BIND_NOSTATIC
#define fp_nquery		__fp_nquery
#define fp_query		__fp_query
#define hostalias		__hostalias
#define p_query			__p_query
#define res_close		__res_close
#define res_init		__res_init
#define res_isourserver		__res_isourserver
#define res_mkquery		__res_mkquery
#define res_query		__res_query
#define res_querydomain		__res_querydomain
#define res_search		__res_search
#define res_send		__res_send

__BEGIN_DECLS
void		fp_nquery __P((const u_char *, int, FILE *));
void		fp_query __P((const u_char *, FILE *));
const char *	hostalias __P((const char *));
void		p_query __P((const u_char *));
void		res_close __P((void));
int		res_init __P((void));
int		res_isourserver __P((const struct sockaddr_in *));
int		res_mkquery __P((int, const char *, int, int, const u_char *,
				 int, const u_char *, u_char *, int));
int		res_query __P((const char *, int, int, u_char *, int));
int		res_querydomain __P((const char *, const char *, int, int,
				     u_char *, int));
int		res_search __P((const char *, int, int, u_char *, int));
int		res_send __P((const u_char *, int, u_char *, int));
__END_DECLS
#endif

#if !defined(SHARED_LIBBIND) || defined(LIB)
/*
 * If libbind is a shared object (well, DLL anyway)
 * these externs break the linker when resolv.h is
 * included by a lib client (like named)
 * Make them go away if a client is including this
 *
 */
extern const struct res_sym __p_key_syms[];
extern const struct res_sym __p_cert_syms[];
extern const struct res_sym __p_class_syms[];
extern const struct res_sym __p_type_syms[];
extern const struct res_sym __p_rcode_syms[];
#endif /* SHARED_LIBBIND */

#define b64_ntop		__b64_ntop
#define b64_pton		__b64_pton
#define dn_comp			__dn_comp
#define dn_count_labels		__dn_count_labels
#define dn_expand		__dn_expand
#define dn_skipname		__dn_skipname
#define fp_resstat		__fp_resstat
#define loc_aton		__loc_aton
#define loc_ntoa		__loc_ntoa
#define p_cdname		__p_cdname
#define p_cdnname		__p_cdnname
#define p_class			__p_class
#define p_fqname		__p_fqname
#define p_fqnname		__p_fqnname
#define p_option		__p_option
#define p_secstodate		__p_secstodate
#define p_section		__p_section
#define p_time			__p_time
#define p_type			__p_type
#define p_rcode			__p_rcode
#define putlong			__putlong
#define putshort		__putshort
#define res_dnok		__res_dnok
#define res_hnok		__res_hnok
#define res_hostalias		__res_hostalias
#define res_mailok		__res_mailok
#define res_nameinquery		__res_nameinquery
#define res_nclose		__res_nclose
#define res_ninit		__res_ninit
#define res_nmkquery		__res_nmkquery
#define res_npquery		__res_npquery
#define res_nquery		__res_nquery
#define res_nquerydomain	__res_nquerydomain
#define res_nsearch		__res_nsearch
#define res_nsend		__res_nsend
#define res_nisourserver	__res_nisourserver
#define res_ownok		__res_ownok
#define res_queriesmatch	__res_queriesmatch
#define res_randomid		__res_randomid
#define sym_ntop		__sym_ntop
#define sym_ntos		__sym_ntos
#define sym_ston		__sym_ston
__BEGIN_DECLS
int		res_hnok __P((const char *));
int		res_ownok __P((const char *));
int		res_mailok __P((const char *));
int		res_dnok __P((const char *));
int		sym_ston __P((const struct res_sym *, const char *, int *));
const char *	sym_ntos __P((const struct res_sym *, int, int *));
const char *	sym_ntop __P((const struct res_sym *, int, int *));
int		b64_ntop __P((u_char const *, size_t, char *, size_t));
int		b64_pton __P((char const *, u_char *, size_t));
int		loc_aton __P((const char *ascii, u_char *binary));
const char *	loc_ntoa __P((const u_char *binary, char *ascii));
int		dn_skipname __P((const u_char *, const u_char *));
void		putlong __P((u_int32_t, u_char *));
void		putshort __P((u_int16_t, u_char *));
const char *	p_class __P((int));
const char *	p_time __P((u_int32_t));
const char *	p_type __P((int));
const char *	p_rcode __P((int));
const u_char *	p_cdnname __P((const u_char *, const u_char *, int, FILE *));
const u_char *	p_cdname __P((const u_char *, const u_char *, FILE *));
const u_char *	p_fqnname __P((const u_char *cp, const u_char *msg,
			       int, char *, int));
const u_char *	p_fqname __P((const u_char *, const u_char *, FILE *));
const char *	p_option __P((u_long option));
char *		p_secstodate __P((u_long));
int		dn_count_labels __P((const char *));
int		dn_comp __P((const char *, u_char *, int,
			     u_char **, u_char **));
int		dn_expand __P((const u_char *, const u_char *, const u_char *,
			       char *, int));
u_int		res_randomid __P((void));
int		res_nameinquery __P((const char *, int, int,
				     const u_char *, const u_char *));
int		res_queriesmatch __P((const u_char *, const u_char *,
				      const u_char *, const u_char *));
const char *	p_section __P((int section, int opcode));
/* Things involving a resolver context. */
int		res_ninit __P((res_state));
int		res_nisourserver __P((const res_state,
				      const struct sockaddr_in *));
void		fp_resstat __P((const res_state, FILE *));
void		res_npquery __P((const res_state, const u_char *, int, FILE *));
const char *	res_hostalias __P((const res_state, const char *,
				   char *, size_t));
int		res_nquery __P((res_state,
				const char *, int, int, u_char *, int));
int		res_nsearch __P((res_state, const char *, int,
				 int, u_char *, int));
int		res_nquerydomain __P((res_state,
				      const char *, const char *, int, int,
				      u_char *, int));
int		res_nmkquery __P((res_state,
				  int, const char *, int, int, const u_char *,
				  int, const u_char *, u_char *, int));
int		res_nsend __P((res_state, const u_char *, int, u_char *, int));
void		res_nclose __P((res_state));
__END_DECLS
#endif

#endif /* !_RESOLV_H_ */
Commit	Line	Data
28f540f4	1	/*
e685e07d	2	* Copyright (c) 1983, 1987, 1989
28f540f4	3	* The Regents of the University of California. All rights reserved.
835bf8e0	4	*
28f540f4 RM	5	* Redistribution and use in source and binary forms, with or without
	6	* modification, are permitted provided that the following conditions
	7	* are met:
	8	* 1. Redistributions of source code must retain the above copyright
	9	* notice, this list of conditions and the following disclaimer.
	10	* 2. Redistributions in binary form must reproduce the above copyright
	11	* notice, this list of conditions and the following disclaimer in the
	12	* documentation and/or other materials provided with the distribution.
28f540f4 RM	13	* 4. Neither the name of the University nor the names of its contributors
	14	* may be used to endorse or promote products derived from this software
	15	* without specific prior written permission.
835bf8e0	16	*
28f540f4 RM	17	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	18	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	19	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	20	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	21	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	22	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	23	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	24	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	25	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	26	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	27	* SUCH DAMAGE.
28f540f4 RM	28	*/
28f540f4 RM	29
b43b13ac UD	30	/*
	31	* Portions Copyright (c) 1996-1999 by Internet Software Consortium.
	32	*
	33	* Permission to use, copy, modify, and distribute this software for any
	34	* purpose with or without fee is hereby granted, provided that the above
	35	* copyright notice and this permission notice appear in all copies.
	36	*
	37	* THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
	38	* ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
	39	* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
	40	* CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
	41	* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
	42	* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
	43	* ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
	44	* SOFTWARE.
	45	*/
	46
28f540f4 RM	47	/*
28f540f4 RM	48	* @(#)resolv.h 8.1 (Berkeley) 6/2/93
e685e07d	49	* $BINDId: resolv.h,v 8.31 2000/03/30 20:16:50 vixie Exp $
28f540f4 RM	50	*/
28f540f4 RM	51
e685e07d	52	#ifndef _RESOLV_H_
535b764d UD	53	#ifndef __need_res_state
535b764d UD	54	# define _RESOLV_H_
a5a0310d	55
535b764d UD	56	# include <sys/param.h>
	57	# if (!defined(BSD)) \|\| (BSD < 199306)
	58	# include <sys/bitypes.h>
	59	# else
	60	# include <sys/types.h>
	61	# endif
	62	# include <sys/cdefs.h>
	63	# include <stdio.h>
	64	# include <arpa/nameser.h>
28f540f4	65	#endif
e685e07d	66
a5a0310d	67	#include <netinet/in.h>
28f540f4	68
535b764d UD	69	#ifndef __res_state_defined
535b764d UD	70	# define __res_state_defined
28f540f4	71
b43b13ac UD	72	typedef enum { res_goahead, res_nextns, res_modified, res_done, res_error }
	73	res_sendhookact;
	74
3452aba8 UD	75	typedef res_sendhookact (res_send_qhook) (struct sockaddr_in const *ns,
	76	const u_char **query,
	77	int *querylen,
	78	u_char *ans,
	79	int anssiz,
	80	int *resplen);
b43b13ac	81
3452aba8 UD	82	typedef res_sendhookact (res_send_rhook) (const struct sockaddr_in ns,
	83	const u_char *query,
	84	int querylen,
	85	u_char *ans,
	86	int anssiz,
	87	int *resplen);
b43b13ac	88
28f540f4 RM	89	/*
	90	* Global defines and variables for resolver stub.
	91	*/
535b764d UD	92	# define MAXNS 3 /* max # name servers we'll track */
	93	# define MAXDFLSRCH 3 /* # default domain levels to try */
	94	# define MAXDNSRCH 6 /* max # domains in search path */
	95	# define LOCALDOMAINPARTS 2 /* min levels in name that is "local" */
28f540f4	96
535b764d UD	97	# define RES_TIMEOUT 5 /* min. seconds between retries */
	98	# define MAXRESOLVSORT 10 /* number of net to sort on */
	99	# define RES_MAXNDOTS 15 /* should reflect bit field size */
	100	# define RES_MAXRETRANS 30 /* only for resolv.conf/RES_OPTIONS */
	101	# define RES_MAXRETRY 5 /* only for resolv.conf/RES_OPTIONS */
	102	# define RES_DFLRETRY 2 /* Default #/tries. */
	103	# define RES_MAXTIME 65535 /* Infinity, in milliseconds. */
28f540f4 RM	104
28f540f4 RM	105	struct __res_state {
e685e07d	106	int retrans; /* retransmition time interval */
28f540f4 RM	107	int retry; /* number of times to retransmit */
	108	u_long options; /* option flags - see below. */
	109	int nscount; /* number of name servers */
	110	struct sockaddr_in
	111	nsaddr_list[MAXNS]; /* address of name server */
535b764d	112	# define nsaddr nsaddr_list[0] /* for backward compatibility */
1f64ac13	113	u_short id; /* current message id */
28f540f4	114	char dnsrch[MAXDNSRCH+1]; / components of domain to search */
845dcb57	115	char defdname[256]; /* default domain (deprecated) */
28f540f4 RM	116	u_long pfcode; /* RES_PRF_ flags - see below. */
	117	unsigned ndots:4; /* threshold for initial abs. query */
	118	unsigned nsort:4; /* number of elements in sort_list[] */
	119	char unused[3];
	120	struct {
	121	struct in_addr addr;
	122	u_int32_t mask;
	123	} sort_list[MAXRESOLVSORT];
b43b13ac UD	124	res_send_qhook qhook; /* query hook */
	125	res_send_rhook rhook; /* response hook */
	126	int res_h_errno; /* last one set for this context */
e685e07d	127	int _vcsock; /* PRIVATE: for res_send VC i/o */
b43b13ac	128	u_int _flags; /* PRIVATE: see below */
e685e07d UD	129	union {
	130	char pad[52]; /* On an i386 this means 512b total. */
	131	struct {
	132	u_int16_t nscount;
b64e1566	133	u_int16_t nsmap[MAXNS];
e685e07d	134	int nssocks[MAXNS];
438e8239	135	u_int16_t nscount6;
03fbfeb5	136	u_int16_t nsinit;
438e8239	137	struct sockaddr_in6 *nsaddrs[MAXNS];
e685e07d UD	138	} _ext;
e685e07d UD	139	} _u;
28f540f4 RM	140	};
28f540f4 RM	141
b43b13ac	142	typedef struct __res_state *res_state;
535b764d UD	143	# undef __need_res_state
	144	#endif
	145
	146	#ifdef _RESOLV_H_
	147	/*
	148	* Revision information. This is the release date in YYYYMMDD format.
	149	* It can change every day so the right thing to do with it is use it
	150	* in preprocessor commands such as "#if (__RES > 19931104)". Do not
	151	* compare for equality; rather, use it to determine whether your resolver
	152	* is new enough to contain a certain feature.
	153	*/
	154
	155	#define __RES 19991006
	156
	157	/*
	158	* Resolver configuration file.
	159	* Normally not present, but may contain the address of the
	160	* inital name server(s) to query and the domain search list.
	161	*/
	162
	163	#ifndef _PATH_RESCONF
	164	#define _PATH_RESCONF "/etc/resolv.conf"
	165	#endif
	166
	167	struct res_sym {
	168	int number; /* Identifying number, like T_MX */
	169	char * name; /* Its symbolic name, like "MX" */
	170	char * humanname; /* Its fun name, like "mail exchanger" */
	171	};
b43b13ac UD	172
	173	/*
	174	* Resolver flags (used to be discrete per-module statics ints).
	175	*/
	176	#define RES_F_VC 0x00000001 /* socket is TCP */
	177	#define RES_F_CONN 0x00000002 /* socket is connected */
	178
	179	/* res_findzonecut() options */
	180	#define RES_EXHAUSTIVE 0x00000001 /* always do all queries */
	181
28f540f4 RM	182	/*
	183	* Resolver options (keep these in synch with res_debug.c, please)
	184	*/
	185	#define RES_INIT 0x00000001 /* address initialized */
	186	#define RES_DEBUG 0x00000002 /* print debug messages */
3d61b63c	187	#define RES_AAONLY 0x00000004 /* authoritative answers only (!IMPL)*/
28f540f4	188	#define RES_USEVC 0x00000008 /* use virtual circuit */
3d61b63c	189	#define RES_PRIMARY 0x00000010 /* query primary server only (!IMPL) */
28f540f4 RM	190	#define RES_IGNTC 0x00000020 /* ignore trucation errors */
	191	#define RES_RECURSE 0x00000040 /* recursion desired */
	192	#define RES_DEFNAMES 0x00000080 /* use default domain name */
	193	#define RES_STAYOPEN 0x00000100 /* Keep TCP socket open */
	194	#define RES_DNSRCH 0x00000200 /* search up local domain tree */
	195	#define RES_INSECURE1 0x00000400 /* type 1 security disabled */
	196	#define RES_INSECURE2 0x00000800 /* type 2 security disabled */
3d61b63c	197	#define RES_NOALIASES 0x00001000 /* shuts off HOSTALIASES feature */
fa0bc87c	198	#define RES_USE_INET6 0x00002000 /* use/map IPv6 in gethostbyname() */
b43b13ac UD	199	#define RES_ROTATE 0x00004000 /* rotate ns list after each query */
	200	#define RES_NOCHECKNAME 0x00008000 /* do not check names for sanity. */
	201	#define RES_KEEPTSIG 0x00010000 /* do not strip TSIG records */
e685e07d	202	#define RES_BLAST 0x00020000 /* blast all recursive servers */
28f540f4 RM	203
	204	#define RES_DEFAULT (RES_RECURSE \| RES_DEFNAMES \| RES_DNSRCH)
	205
	206	/*
	207	* Resolver "pfcode" values. Used by dig.
	208	*/
	209	#define RES_PRF_STATS 0x00000001
b43b13ac	210	#define RES_PRF_UPDATE 0x00000002
e685e07d	211	#define RES_PRF_CLASS 0x00000004
28f540f4 RM	212	#define RES_PRF_CMD 0x00000008
	213	#define RES_PRF_QUES 0x00000010
	214	#define RES_PRF_ANS 0x00000020
	215	#define RES_PRF_AUTH 0x00000040
	216	#define RES_PRF_ADD 0x00000080
	217	#define RES_PRF_HEAD1 0x00000100
	218	#define RES_PRF_HEAD2 0x00000200
	219	#define RES_PRF_TTLID 0x00000400
	220	#define RES_PRF_HEADX 0x00000800
	221	#define RES_PRF_QUERY 0x00001000
	222	#define RES_PRF_REPLY 0x00002000
b43b13ac	223	#define RES_PRF_INIT 0x00004000
28f540f4 RM	224	/* 0x00008000 */
28f540f4 RM	225
b43b13ac	226	/* Things involving an internal (static) resolver context. */
835bf8e0	227	__BEGIN_DECLS
f14273c5	228	extern struct __res_state *__res_state(void) __attribute__ ((__const__));
835bf8e0	229	__END_DECLS
e685e07d	230	#define _res (*__res_state())
fdacb17d	231
e685e07d	232	#ifndef __BIND_NOSTATIC
b43b13ac UD	233	#define fp_nquery __fp_nquery
	234	#define fp_query __fp_query
	235	#define hostalias __hostalias
	236	#define p_query __p_query
	237	#define res_close __res_close
e685e07d	238	#define res_init __res_init
b43b13ac	239	#define res_isourserver __res_isourserver
e685e07d UD	240	#define res_mkquery __res_mkquery
	241	#define res_query __res_query
	242	#define res_querydomain __res_querydomain
	243	#define res_search __res_search
b43b13ac	244	#define res_send __res_send
28f540f4	245
b43b13ac	246	__BEGIN_DECLS
e685e07d UD	247	void fp_nquery __P((const u_char , int, FILE ));
	248	void fp_query __P((const u_char , FILE ));
	249	const char * hostalias __P((const char *));
	250	void p_query __P((const u_char *));
	251	void res_close __P((void));
	252	int res_init __P((void));
	253	int res_isourserver __P((const struct sockaddr_in *));
	254	int res_mkquery __P((int, const char , int, int, const u_char ,
	255	int, const u_char , u_char , int));
	256	int res_query __P((const char , int, int, u_char , int));
	257	int res_querydomain __P((const char , const char , int, int,
	258	u_char *, int));
	259	int res_search __P((const char , int, int, u_char , int));
	260	int res_send __P((const u_char , int, u_char , int));
b43b13ac	261	__END_DECLS
e685e07d	262	#endif
df21c858	263
e685e07d	264	#if !defined(SHARED_LIBBIND) \|\| defined(LIB)
b43b13ac UD	265	/*
b43b13ac UD	266	* If libbind is a shared object (well, DLL anyway)
835bf8e0	267	* these externs break the linker when resolv.h is
b43b13ac UD	268	* included by a lib client (like named)
	269	* Make them go away if a client is including this
	270	*
	271	*/
	272	extern const struct res_sym __p_key_syms[];
	273	extern const struct res_sym __p_cert_syms[];
df21c858 UD	274	extern const struct res_sym __p_class_syms[];
df21c858 UD	275	extern const struct res_sym __p_type_syms[];
b43b13ac UD	276	extern const struct res_sym __p_rcode_syms[];
b43b13ac UD	277	#endif /* SHARED_LIBBIND */
28f540f4	278
b43b13ac UD	279	#define b64_ntop __b64_ntop
	280	#define b64_pton __b64_pton
	281	#define dn_comp __dn_comp
	282	#define dn_count_labels __dn_count_labels
e685e07d	283	#define dn_expand __dn_expand
b43b13ac UD	284	#define dn_skipname __dn_skipname
	285	#define fp_resstat __fp_resstat
	286	#define loc_aton __loc_aton
	287	#define loc_ntoa __loc_ntoa
	288	#define p_cdname __p_cdname
	289	#define p_cdnname __p_cdnname
	290	#define p_class __p_class
	291	#define p_fqname __p_fqname
	292	#define p_fqnname __p_fqnname
	293	#define p_option __p_option
	294	#define p_secstodate __p_secstodate
	295	#define p_section __p_section
	296	#define p_time __p_time
	297	#define p_type __p_type
	298	#define p_rcode __p_rcode
	299	#define putlong __putlong
	300	#define putshort __putshort
	301	#define res_dnok __res_dnok
b43b13ac UD	302	#define res_hnok __res_hnok
	303	#define res_hostalias __res_hostalias
	304	#define res_mailok __res_mailok
	305	#define res_nameinquery __res_nameinquery
	306	#define res_nclose __res_nclose
	307	#define res_ninit __res_ninit
	308	#define res_nmkquery __res_nmkquery
	309	#define res_npquery __res_npquery
	310	#define res_nquery __res_nquery
	311	#define res_nquerydomain __res_nquerydomain
	312	#define res_nsearch __res_nsearch
	313	#define res_nsend __res_nsend
	314	#define res_nisourserver __res_nisourserver
	315	#define res_ownok __res_ownok
	316	#define res_queriesmatch __res_queriesmatch
	317	#define res_randomid __res_randomid
	318	#define sym_ntop __sym_ntop
	319	#define sym_ntos __sym_ntos
	320	#define sym_ston __sym_ston
28f540f4	321	__BEGIN_DECLS
e685e07d UD	322	int res_hnok __P((const char *));
	323	int res_ownok __P((const char *));
	324	int res_mailok __P((const char *));
	325	int res_dnok __P((const char *));
	326	int sym_ston __P((const struct res_sym , const char , int *));
	327	const char * sym_ntos __P((const struct res_sym , int, int ));
	328	const char * sym_ntop __P((const struct res_sym , int, int ));
	329	int b64_ntop __P((u_char const , size_t, char , size_t));
	330	int b64_pton __P((char const , u_char , size_t));
	331	int loc_aton __P((const char ascii, u_char binary));
	332	const char * loc_ntoa __P((const u_char binary, char ascii));
	333	int dn_skipname __P((const u_char , const u_char ));
	334	void putlong __P((u_int32_t, u_char *));
	335	void putshort __P((u_int16_t, u_char *));
	336	const char * p_class __P((int));
	337	const char * p_time __P((u_int32_t));
	338	const char * p_type __P((int));
	339	const char * p_rcode __P((int));
	340	const u_char * p_cdnname __P((const u_char , const u_char , int, FILE *));
	341	const u_char * p_cdname __P((const u_char , const u_char , FILE *));
	342	const u_char * p_fqnname __P((const u_char cp, const u_char msg,
	343	int, char *, int));
	344	const u_char * p_fqname __P((const u_char , const u_char , FILE *));
	345	const char * p_option __P((u_long option));
	346	char * p_secstodate __P((u_long));
	347	int dn_count_labels __P((const char *));
	348	int dn_comp __P((const char , u_char , int,
	349	u_char , u_char ));
	350	int dn_expand __P((const u_char , const u_char , const u_char *,
	351	char *, int));
	352	u_int res_randomid __P((void));
	353	int res_nameinquery __P((const char *, int, int,
	354	const u_char , const u_char ));
	355	int res_queriesmatch __P((const u_char , const u_char ,
	356	const u_char , const u_char ));
	357	const char * p_section __P((int section, int opcode));
b43b13ac	358	/* Things involving a resolver context. */
e685e07d UD	359	int res_ninit __P((res_state));
	360	int res_nisourserver __P((const res_state,
	361	const struct sockaddr_in *));
	362	void fp_resstat __P((const res_state, FILE *));
	363	void res_npquery __P((const res_state, const u_char , int, FILE ));
	364	const char * res_hostalias __P((const res_state, const char *,
	365	char *, size_t));
	366	int res_nquery __P((res_state,
	367	const char , int, int, u_char , int));
	368	int res_nsearch __P((res_state, const char *, int,
	369	int, u_char *, int));
	370	int res_nquerydomain __P((res_state,
	371	const char , const char , int, int,
	372	u_char *, int));
	373	int res_nmkquery __P((res_state,
	374	int, const char , int, int, const u_char ,
	375	int, const u_char , u_char , int));
	376	int res_nsend __P((res_state, const u_char , int, u_char , int));
	377	void res_nclose __P((res_state));
28f540f4	378	__END_DECLS
535b764d	379	#endif
28f540f4	380
b43b13ac	381	#endif /* !_RESOLV_H_ */